Home / 15,122,349,616.89-20,868,909,126.02-8,348,223,861.10

Finding the Fourth Proportional to 15,122,349,616.89, 20,868,909,126.02 and 8,348,223,861.10

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Solution

The fourth proportional to 15,122,349,616.89, 20,868,909,126.02 and 8,348,223,861.10 is: 11,520,585,724.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122,349,616.89 : 20,868,909,126.02 = 8,348,223,861.10 : x
  2. Step 2: Convert to fraction form
    15,122,349,616.89/20,868,909,126.02 = 8,348,223,861.10/x
  3. Step 3: Cross multiply
    15,122,349,616.89x = 20,868,909,126.02 × 8,348,223,861.10
  4. Step 4: Simplify right side
    15,122,349,616.89x = 174,218,325,120,967,737,344
  5. Step 5: Solve for x
    x = 174,218,325,120,967,737,344/15,122,349,616.89
  6. Step 6: Final answer
    x = 11,520,585,724.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.